Hi Simon, On Thu, Sep 8, 2016 at 1:36 PM, Simon Horman <[email protected]> wrote: > All the SHDIs can operate with either 3.3V or 1.8V signals, depending > on negotiation with the card. > > Based on work by Wolfram Sang for the r8a7790. > > Cc: Wolfram Sang <[email protected]> > Signed-off-by: Simon Horman <[email protected]>
If you correct the copy-and-pasted comment below, you can add my Reviewed-by: Geert Uytterhoeven <[email protected]> > --- > drivers/pinctrl/sh-pfc/pfc-r8a7791.c | 29 ++++++++++++++++++++++++++++- > 1 file changed, 28 insertions(+), 1 deletion(-) > > diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7791.c > b/drivers/pinctrl/sh-pfc/pfc-r8a7791.c > index 0c1a60c9a844..b707fc96f208 100644 > --- a/drivers/pinctrl/sh-pfc/pfc-r8a7791.c > +++ b/drivers/pinctrl/sh-pfc/pfc-r8a7791.c > @@ -13,6 +13,10 @@ > > #include "sh_pfc.h" > > +/* > + * All pins assigned to GPIO bank 3 can be used for SD interfaces in Pins 0-23 assigned to GPIO bank 6... > + * which case they support both 3.3V and 1.8V signalling. > + */ > #define CPU_ALL_PORT(fn, sfx) \ > PORT_GP_32(0, fn, sfx), \ > PORT_GP_26(1, fn, sfx), \ > @@ -20,7 +24,15 @@ > PORT_GP_32(3, fn, sfx), \ > PORT_GP_32(4, fn, sfx), \ > PORT_GP_32(5, fn, sfx), \ > - PORT_GP_32(6, fn, sfx), \ > + PORT_GP_CFG_24(6, fn, sfx, SH_PFC_PIN_CFG_IO_VOLTAGE), \ Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected] In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
